搜索结果: 46-60 共查到“知识库 计算机图形学”相关记录607条 . 查询时间(1.095 秒)
Generating Personalized Spatial Analogies for Distances and Areas
Distance area landmark locator map spatial analogy information visualization
2016/5/24
Distances and areas frequently appear in text articles. However,
people struggle to understand these measurements when
they cannot relate them to measurements of locations that
they are personally ...
CONCEPTUAL REQUIREMENTS FOR THE AUTOMATIC RECONSTRUCTION OF BUILDING INFORMATION MODELS FROM UNINTERPRETED 3D MODELS
3D city models 3D graphics models, semantic modeling
2016/2/29
A multitude of new applications is quickly emerging in the field of Building Information Models (BIM). BIM models describe
buildings with respect to their spatial and especially semantic and thematic...
Robust Shape Fitting and Semantic Enrichment
Algorithms Classifi cation Geometry Knowledge Base Mathematics Point Cloud Reconstruction Registration
2015/11/13
A robust fitting and reconstruction algorithm has to cope with two major problems. First of all it has to be able to deal with noisy inputdata and outliers. Furthermore it should be capable of h...
DIRECTION OF DIGITAL IMAGE ANALYSIS TRAINING THROUGH THE 28 YEARS EXPERIENCE
remote sensing classroom lecture hands-on training e-learning
2015/8/24
Remote Sensing Technology Center of Japan (RESTEC) has been organizing various kinds of remote sensing training programs
since RESTEC was established in 1975. Among them, remote sensing training cou...
A probabilistic model for heading judgments from converging elements
optical flow motion parallax wayfinding
2015/8/13
This paper describes the mathematical basis and application of a probabilistic model for recovering the direction of camera trans-lation (heading) from optical flow. According to the theorem that head...
The fastest mixing Markov process on a graph and a connection to a maximum variance unfolding problem
Markov process fast mixing second smallest eigenvalue semidefinite programming dimensionality reduction
2015/8/10
We consider a Markov process on a connected graph, with edges labeled with transition rates between the adjacent vertices. The distribution of the Markov process converges to the uniform distribution ...
Computational Visualistics: Dealing with Pictures in Computer Science
computational visualistics computer graphics information visualization picture processing
2015/7/30
Building blocks from many disciplines have to be integrated into a general science of images. Computational visualistics has been formed as a contributing field embracing all aspects of dealing with i...
Graphics and Language as Complementary Formal Representations for Geospatial Descriptions
Abstraction Spatial Analysis Knowledge Representation
2015/7/6
In image understanding, the importance of language (e.g. the choice of class names in image analysis) has been widely
underestimated up to now. Within this paper, the close interaction between langua...
SENSITIVITY TO PROPORTIONS IN FACES OF VARYING ANTHROPOMORPHISM
three-dimensional two-dimensional
2015/5/27
Although it has been said that beauty is in the eye of the beholder, studies in social
and medical sciences indicate that certain facial and bodily proportions are perceived
to be more attractive ac...
In regulated environments, such as the pharmaceutical industry, it is critical to
have employees who are qualified to perform the tasks of their job. Companies offer
numerous training courses, inclu...
一种环境理解的分布式群体仿真任务划分方法
分布式仿真 群体仿真 任务划分 图形处理单元
2017/1/11
本文通过引入环境结构因素,提出了一种适用于多层次复杂环境的自适应任务划分算法.自动读取场景模型并通过理解转换为连通邻接区域集,然后对区域进行快速粗粒度划分,有效提高划分性能;自然消除了被障碍隔离的相邻区域个体间的感知计算,大大减少了节点间通信量,使之更适合于大规模群体仿真应用.实验结果表明该算法的划分代价和执行性能均较优.文中设计了一种适合该划分算法的分布式仿真模型,基于该模型的分布式系统对室内多...
近年来,随着科学数据的快速增长,海量数据的可视化分析成了急需解决的难题.越来越多的处理海量数据的方法向着并行、分布式处理的方向发展.本文提出了一种混合的框架来处理海量的超声数据,该框架通过整合多种硬件环境和计算资源来处理海量数据;所有的数据都存放在一个基于高速网络环境的数据共享中心,具有高性能显卡的前端工作站将耗时的处理任务分配到网络中的计算结点,而自身处理显示和交互的操作;同时基于OpenCL和...
中心偏移的全景环形图像快速展开
全景图像 图像展开 锥面镜 最小二乘法
2014/3/21
采用机器视觉技术检测管道内表面质量时,获取的原始图像几何中心与其前景区管壁全景环形图像中心存在偏移,从而会使以图像几何中心展开的图像产生失真的现象。本文针对存在中心偏移的全景环形图像提出了快速展开算法以减小由上述原因造成的图像中几何特征量的测量误差。提出的算法通过最小二乘拟合圆心法找到全景环形图像上代表管壁某一截面的拟合圆,继而得到全景图像的中心参数,然后通过四分之一圆扫描方法快速展开全景图像,并...
基于兴趣图谱的用户兴趣分布分析及专家发现
专家发现 兴趣分析 兴趣图谱 复杂网络分析
2017/1/6
尽管用户可自主生成个性化数据以更全面描述个人偏好,但由于用户创建数据不严谨、不可控,导致生成的庞大数据集大多存在质量低、噪声严重的缺陷.因此管理复杂网络信息时,不能仅使用写入性知识,必须重视具有大量领域知识的专家,因为其可为系统提供高质量的信息.本文通过构建和分析用户兴趣分布曲线以发现兴趣领域专家,并提出甄别状态不正常的伪专家算法.由于网络中权威专家数量较少,所以所提供的信息是有限的.因此本文定义...
Al-Dy, Dy-Zr和Al-Dy-Zr体系的热力学优化
Al-Dy-Zr体系 热力学优化 第一原理计 相图 相图计算
2014/4/3
与Al3Sc类似，Al30Dy7Zr3化合物也具有L12结构，有望利用其来提高Al合金的高温强度. 因此，了解Al-Dy-Zr体系富Al角的相关系极为重要. 本文将C15_Laves相处理成计量比化合物，重新优化了Al-Dy二元相图；采用包含16个原子的特别准随机结构（SQS_16）来模拟Dy1-xZrx（x=0.25，0.5，0.75） hcp_A3固溶体，通过第一原理方法计算了其0 K下的混合...